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Monkeys seem to have a way with numbers....

??? Monkeys seem to have a way with numbers.

A team of researchers trained three Rhesus monkeys to associate 26 clearly different symbols made up of numbers and selective letters with 0-25 drops of water or juice as a reward. The researchers then tested how the monkeys combined—or added—the symbols to get the reward.

Here's how Harvard Medical School scientist Margaret Livingstone, who led the team, described the experiment: In their cages the monkeys were provided with touch screens. On one part of the screen, a symbol would appear, and on the other side two symbols inside a circle were shown. For example, the number 7 would flash on one side of the screen and the other end would have 9 and 8. If the monkeys touched the left side of the screen they would be rewarded with seven drops of water or juice; if they went for the circle, they would be rewarded with the sum of the numbers—17 in this example.

After running hundreds of tests, the researchers noted that the monkeys would go for the higher values more than half the time, showing that they were performing a calculation(計算), not just remembering the value of each combination.

When the team studied the results of the experiment more closely, they noticed that the monkeys tended to underestimate(低估)a sum compared with a single symbol when the two were close in value—sometimes choosing, for example, a 13 over the sum of 8 and 6. The underestimation was systematic: When adding two numbers, the monkeys always paid attention to the larger of the two, and then added only a fraction(小部分)of the smaller number to it.

"This shows that there is a certain way number is represented in their brains, "Dr. Livingstone says. “But in this experiment what they're doing is paying more attention to the big number than the little one.”

1.What did the researchers do to the monkeys before testing them?

A.They fed them. B.They named them.

C.They trained them. D.They washed them.

2.How did the monkeys get their reward in the experiment?

A.By drawing a circle. B.By touching a screen.

C.By watching videos. D.By mixing two drinks.

3.What did Livingstone's team find about the monkeys?

A.They could perform basic addition. B.They could understand simple words.

C.They could remember numbers easily. D.They could hold their attention for long.

4.In which part of a newspaper may this text appear?

A.Science. B.Health. C.Education. D.Entertainment.


1.C 2.B 3.A 4.A 【解析】 本文是一篇說明文。主要介紹了Margaret Livingstone 的實驗過程及結果。該實驗介紹了猴子和數字的關系。 1. 細節理解題。根據“A team of researchers trained three Rhesus monkeys to associate…… and selective letter...

In some science fiction movies, evil robots refuse to die, no matter how hard people fight back.

Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating (挨打) and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs.

Until now, even the most advanced (先進的) robot was almost certain to break down when it was damaged. That is because its computer inside simply doesn’t know how to make the machine work after its shape has changed.

To deal with this problem, the scientists put eight motors (發動機) and two sensors (傳感器) that read how the machine is working. They all give signals to the machine’s software. Using this information, the computer can then figure out the machine’s shape??????? at any moment.

The new technology is a big advance in robot-making, scientists say, and it’s far from scary. It may someday help scientists create better artificial (假的) arms and legs and give new freedom to people who losethem. It might also help scientists understand how people and animals figure out their own sense of place in space.

“It has been difficult to design robots that can work well when the environment changes or when it’s damaged,” says Olaf Sporns of Indiana University in US. “With this work, we are nearer to solving this problem.”

1.Why do robots easily break down when they are damaged?

A.They cannot repair themselves.

B.The computer has changed a lot.

C.They have no computers inside.

D.The computer cannot work if the robot changes.



2.The new technology allows the robot to _________.

A.do house work for humans

B.keep working after being damaged

C.remember a lot of information

D.tell people where it is

3.The underlined word “them” in Paragraph 5 refers to ________.



C.arms and legs


4.How do the sensors in the robot work?

A.They can replace the computer when it’s broken.

B.They can find out where the damage comes from.

C.They help the computer learn the robot’s condition.

D.They can send signals to the person who uses the robot.



??? On January 27, in order to win the new pneumonia Resistance War (抗新型肺炎戰)? , the Ministry of Education issued (公布) a notice on putting off the start time of school in spring 2020. It was said that school should not start before February 17. The exact start time of school will depend on situations and further notices.

However, many parents are very worried that putting off the start of school may affect children's studies. If they have such a long winter vacation, children will not learn any knowledge, read books or study at all. They may forget what they have learned before. Staying at home for a long time will make them keep eating, sleeping and playing, which seriously affect their physical and mental health.

In short, the close of school influences learning and develops bad habits, so how should we avoid these problems? Local education departments have also issued a notice, that is, to organize online teaching and create a network platform (平臺) , where necessary courses will be shown every day, and online teaching will be given by excellent teachers of the subject, and students can learn at home through computer or mobile network.

It should be said that such a method is very good. It can not only keep students indoors and not worry about the infection (感染) of the disease, but also make them study at home, improve their learning ability, and truly achieve "no suspension of classes". Both the platform itself and the recorded lesson resources are more useful, and are welcomed by parents and teachers.

Of course, except for learning at home, it is also necessary to teach children about health knowledge, especially how to keep away from touching virus and other knowledge popularization; at the same time, it is also necessary for children to do some physical exercises or some games, which is good for physical health at home.

1.Parents worried about putting off the start time of school because________.

A.children may be infected by virus

B.they don't like the idea of online learning

C.children's study may be affected

D.parents have no time to look after children

2.The underlined word "suspension" in Paragraph 4 probably means________.

A.plan B.stop C.growth D.change

3.Which is TRUE according to the passage?

A.Students would rather go to school.

B.The date of going to school is decided.

C.Online teaching will help students study.

D.Parents believe children can teach themselves.

4.What's the best title for this passage?

A.A Special Way to Learn at Home

B.A New War with a New Chance

C.A Way to Keep Mentally Healthy

D.A Method to Make Parents Worried



There are a lot of music festivals to look forward to in the coming months.

Firefly Music Festival

Many people have thought of going to Delaware for a summer vacation, and mid- June is a great time to plan a trip if you love music.

Date: June 14-17

Place: Delaware, USA

Music Type: Country Music

Roskilde Festival

This music festival has a long history since 1971. What's interesting about this festival is that you can get to know some artists from different countries.

June 30-July 10

Cambridge, England

Music Type: Rock

Secret Solstice

Come to Paris. Not only will you have great music in the Secret Solstice, but you can also visit some old museums.

Date: June 21-24

Place: Paris, France

Music Type: Folk Music

Montreal International Jazz Festival

All jazz lovers should come to the Montreal International Jazz Festival at least once in a lifetime. This event brings together some of the best musicians.

Date: June 28-July 7

Place: Montreal, Canada

Music Type: Jazz

1.What is common to the music festivals in the text?

A. They are all held in Europe.

B. They are all about country music.

C. They are all given outdoors.

D. They all take place in summer.

2.What can we know about Delaware from the text?

A. It is a good choice for summer holiday.

B. It is an old city with many old museums.

C. It has musicians from different countries.

D. It has interested jazz fans around the world.

3.Which music festival will last for the longest time?

A. Secret Solstice.

B. Roskilde Festival.

C. Firefly Music Festival.

D. Montreal International Jazz Festival.



Don’t be too quick to judge others

A woman was at an airport waiting for her flight to start boarding. She still had a lot of time, so she went to a shop and bought a book to read. While she was in the shop, she decided to buy a bag of_______as well.

She arrived at her gate, sat down and started reading her book. She was so focused on her book_______she didn’t notice what was going on around her._______she did see that a man had sat down next to her and_______one of her cookies out of the bag.

She pretended(假裝)not to notice, _______she didn’t want to make a scene(吵架). But then the man took more. He kept eating the cookies until there was just one _______. The man took the _______cookie and broke it in half. He tapped()the woman on the shoulder and held out one _______ to her.

The woman could not believe how much nerve this man had to steal all her cookies and then _______half a cookie in return. She________grabbed () the half-cookie out of his hand and ate it.

Finally, it was time for her to board. But as she went to the gate, she realized that her bag of cookies was ________in her purse. The man had been eating his own cookies the whole time and ________wanted to share the last one with her. The woman blushed. She sincerely wanted to apologize (道歉) to the man ________her rudeness.

When we’re not paying attention to the world around US, it can be easy to misunderstand________is happening or even become angry with others. It is better to keep our eyes open and think about every________when trying to understand a particular situation.

1.A.chocolate B.sweets C.snacks D.cookies

2.A.this B.that C.after D.before

3.A.Or B.So C.But D.And

4.A.brought B.picked C.bought D.taken

5.A.if B.though C.unless D.as

6.A.left B.other C.more D.else

7.A.second B.first C.last D.late

8.A.bag B.piece C.loaf D.half

9.A.showed B.brought C.offered D.provided

10.A.happily B.excitedly C.sadly D.angrily

11.A.just B.even C.also D.still

12.A.differently B.probably C.simply D.hopefully

13.A.by B.in C.with D.for

14.A.how B.why C.when D.what

15.A.condition B.experience C.chance D.possibility



—I can’t go with you today. There will be a test tomorrow.

—________.May be next time.



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